Example usage for android.view MotionEvent ACTION_MOVE

Introduction

In this page you can find the example usage for android.view MotionEvent ACTION_MOVE.

Prototype

int ACTION_MOVE

To view the source code for android.view MotionEvent ACTION_MOVE.

Click Source Link

Document

Constant for #getActionMasked : A change has happened during a press gesture (between #ACTION_DOWN and #ACTION_UP ).

Usage

From source file:com.benefit.buy.library.viewpagerindicator.TitlePageIndicator.java

@Override
public boolean onTouchEvent(android.view.MotionEvent ev) {
    if (super.onTouchEvent(ev)) {
        return true;
    }// w  w w  .j  a v a 2  s .c o m
    if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
        return false;
    }
    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mLastMotionX = ev.getX();
        break;
    case MotionEvent.ACTION_MOVE: {
        final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, activePointerIndex);
        final float deltaX = x - mLastMotionX;
        if (!mIsDragging) {
            if (Math.abs(deltaX) > mTouchSlop) {
                mIsDragging = true;
            }
        }
        if (mIsDragging) {
            mLastMotionX = x;
            if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) {
                mViewPager.fakeDragBy(deltaX);
            }
        }
        break;
    }
    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        if (!mIsDragging) {
            final int count = mViewPager.getAdapter().getCount();
            final int width = getWidth();
            final float halfWidth = width / 2f;
            final float sixthWidth = width / 6f;
            final float leftThird = halfWidth - sixthWidth;
            final float rightThird = halfWidth + sixthWidth;
            final float eventX = ev.getX();
            if (eventX < leftThird) {
                if (mCurrentPage > 0) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage - 1);
                    }
                    return true;
                }
            } else if (eventX > rightThird) {
                if (mCurrentPage < (count - 1)) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage + 1);
                    }
                    return true;
                }
            } else {
                //Middle third
                if ((mCenterItemClickListener != null) && (action != MotionEvent.ACTION_CANCEL)) {
                    mCenterItemClickListener.onCenterItemClick(mCurrentPage);
                }
            }
        }
        mIsDragging = false;
        mActivePointerId = INVALID_POINTER;
        if (mViewPager.isFakeDragging()) {
            mViewPager.endFakeDrag();
        }
        break;
    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastMotionX = MotionEventCompat.getX(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }
    case MotionEventCompat.ACTION_POINTER_UP:
        final int pointerIndex = MotionEventCompat.getActionIndex(ev);
        final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
        if (pointerId == mActivePointerId) {
            final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
            mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        }
        mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }
    return true;
}

---

From source file:cfb.com.dailydevelopment4.example12.library.TitlePageIndicator.java

public boolean onTouchEvent(MotionEvent ev) {
    if (super.onTouchEvent(ev)) {
        return true;
    }//from w w  w. jav a2s  .c  o  m
    if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
        return false;
    }

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mLastMotionX = ev.getX();
        break;

    case MotionEvent.ACTION_MOVE: {
        final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, activePointerIndex);
        final float deltaX = x - mLastMotionX;

        if (!mIsDragging) {
            if (Math.abs(deltaX) > mTouchSlop) {
                mIsDragging = true;
            }
        }

        if (mIsDragging) {
            mLastMotionX = x;
            if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) {
                mViewPager.fakeDragBy(deltaX);
            }
        }

        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        if (!mIsDragging) {
            final int count = mViewPager.getAdapter().getCount();
            final int width = getWidth();
            final float halfWidth = width / 2f;
            final float sixthWidth = width / 6f;
            final float leftThird = halfWidth - sixthWidth;
            final float rightThird = halfWidth + sixthWidth;
            final float eventX = ev.getX();

            if (eventX < leftThird) {
                if (mCurrentPage > 0) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage - 1);
                    }
                    return true;
                }
            } else if (eventX > rightThird) {
                if (mCurrentPage < count - 1) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage + 1);
                    }
                    return true;
                }
            } else {
                //Middle third
                if (mCenterItemClickListener != null && action != MotionEvent.ACTION_CANCEL) {
                    mCenterItemClickListener.onCenterItemClick(mCurrentPage);
                }
            }
        }

        mIsDragging = false;
        mActivePointerId = INVALID_POINTER;
        if (mViewPager.isFakeDragging())
            mViewPager.endFakeDrag();
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastMotionX = MotionEventCompat.getX(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        final int pointerIndex = MotionEventCompat.getActionIndex(ev);
        final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
        if (pointerId == mActivePointerId) {
            final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
            mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        }
        mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }

    return true;
}

---

From source file:cn.edu.zafu.easemob.imagecoverflow.CoverFlowView.java

@Override
public boolean onTouchEvent(MotionEvent event) {
    if (getParent() != null) {
        getParent().requestDisallowInterceptTouchEvent(true);
    }//w  w  w.  ja va2s  .  c om

    int action = event.getAction();
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        if (mScroller.computeScrollOffset()) {
            mScroller.abortAnimation();
            invalidate();
        }
        stopLongClick();
        triggleLongClick(event.getX(), event.getY());
        touchBegan(event);
        return true;
    case MotionEvent.ACTION_MOVE:
        touchMoved(event);
        return true;
    case MotionEvent.ACTION_UP:
        touchEnded(event);
        stopLongClick();
        return true;
    }

    return false;
}

---

From source file:cn.chuangblog.simplebanner1.indicator.TitlePageIndicator.java

public boolean onTouchEvent(MotionEvent ev) {
    if (super.onTouchEvent(ev)) {
        return true;
    }/*ww  w.  ja va2  s  .c  o m*/
    if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
        return false;
    }

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mLastMotionX = ev.getX();
        break;

    case MotionEvent.ACTION_MOVE: {
        final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, activePointerIndex);
        final float deltaX = x - mLastMotionX;

        if (!mIsDragging) {
            if (Math.abs(deltaX) > mTouchSlop) {
                mIsDragging = true;
            }
        }

        if (mIsDragging) {
            mLastMotionX = x;
            if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) {
                mViewPager.fakeDragBy(deltaX);
            }
        }

        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        if (!mIsDragging) {
            final int count = InfiniteViewPager.FakePositionHelper.getAdapterSize(mViewPager);
            final int width = getWidth();
            final float halfWidth = width / 2f;
            final float sixthWidth = width / 6f;
            final float leftThird = halfWidth - sixthWidth;
            final float rightThird = halfWidth + sixthWidth;
            final float eventX = ev.getX();

            if (eventX < leftThird) {
                if (mCurrentPage > 0) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage - 1);
                    }
                    return true;
                }
            } else if (eventX > rightThird) {
                if (mCurrentPage < count - 1) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage + 1);
                    }
                    return true;
                }
            } else {
                //Middle third
                if (mCenterItemClickListener != null && action != MotionEvent.ACTION_CANCEL) {
                    mCenterItemClickListener.onCenterItemClick(mCurrentPage);
                }
            }
        }

        mIsDragging = false;
        mActivePointerId = INVALID_POINTER;
        if (mViewPager.isFakeDragging())
            mViewPager.endFakeDrag();
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastMotionX = MotionEventCompat.getX(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        final int pointerIndex = MotionEventCompat.getActionIndex(ev);
        final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
        if (pointerId == mActivePointerId) {
            final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
            mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        }
        mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }

    return true;
}

---

From source file:com.antew.redditinpictures.library.widget.SwipeListView.java

@Override
public boolean onTouchEvent(MotionEvent event) {
    // Store width of this list for usage of swipe distance detection
    if (mViewWidth < 2) {
        mViewWidth = getWidth();// w  ww .j a  v a 2 s .co m
    }

    switch (MotionEventCompat.getActionMasked(event)) {
    case MotionEvent.ACTION_DOWN:
        int[] viewCoords = new int[2];
        // Figure out where the touch occurred.
        getLocationOnScreen(viewCoords);

        int touchX = (int) event.getRawX() - viewCoords[0];
        int touchY = (int) event.getRawY() - viewCoords[1];

        Rect rect = new Rect();
        View child;

        int childCount = getChildCount();
        for (int i = getHeaderViewsCount(); i <= childCount; i++) {
            // Go through each child view (excluding headers) and see if our touch pressed it.
            child = getChildAt(i);

            if (child != null) {
                //Get the child hit rectangle.
                child.getHitRect(rect);
                //If the child would be hit by this press.
                if (rect.contains(touchX, touchY)) {
                    // DIRECT HIT! You sunk my battleship. Now that we know which view was touched, store it off for use if a move occurs.
                    View frontView = child.findViewById(mFrontViewId);
                    View backView = child.findViewById(mBackViewId);
                    // Create our view pair.
                    mViewPair = new SwipeableViewPair(frontView, backView);
                    break;
                }
            }
        }

        if (mViewPair != null) {
            // If we have a view pair, record details about the inital touch for use later.
            mDownX = event.getRawX();
            mVelocityTracker = VelocityTracker.obtain();
            mVelocityTracker.addMovement(event);
        }
        break;
    case MotionEvent.ACTION_UP:
        if (mVelocityTracker != null) {
            // Add the movement so we can calculate velocity.
            mVelocityTracker.addMovement(event);
            mVelocityTracker.computeCurrentVelocity(1000);

            float deltaX = event.getRawX() - mDownX;
            float velocityX = Math.abs(mVelocityTracker.getXVelocity());
            float velocityY = Math.abs(mVelocityTracker.getYVelocity());

            if (mViewPair != null) {
                boolean shouldSwipe = false;

                // If the view has been moved a significant enough distance or if the view was flung, check to see if we should swipe it.
                if ((Math.abs(deltaX) > mViewWidth / 2 && mState == State.SWIPING)
                        || (mMinFlingVelocity <= velocityX && velocityX <= mMaxFlingVelocity
                                && velocityX > velocityY)) {
                    if (mSwipeDirection == SWIPE_DIRECTION_BOTH) {
                        // If the list is setup to swipe in either direction, just let it go.
                        shouldSwipe = true;
                    } else if (mSwipeDirection == SWIPE_DIRECTION_LEFT && deltaX < 0) {
                        // If the list is only setup to swipe left, then only allow swiping to the left.
                        shouldSwipe = true;
                    } else if (mSwipeDirection == SWIPE_DIRECTION_RIGHT && deltaX > 0) {
                        // If the list is only setup to swipe right, then only allow swiping to the right.
                        shouldSwipe = true;
                    }
                }

                if (shouldSwipe) {
                    // If a swipe should occur meaning someone has let go of a view they were moving and it was far/fast enough for us to consider it a swipe start the animations.
                    mViewPair.mFrontView.animate().translationX(deltaX >= 0 ? mViewWidth : -mViewWidth).alpha(0)
                            .setDuration(mAnimationTime);
                    mViewPair.mBackView.animate().alpha(1).setDuration(mAnimationTime);
                    // Now that the item is open, store it off so we can close it when we scroll if needed.
                    mSwipedViews.put(mViewPair.hashCode(), mViewPair);
                    // Clear out current variables as they are no longer needed and recycle the velocity tracker.
                    resetState();
                } else {
                    // If the user let go of the view and we don't think the swipe was intended to occur (it was cancelled basically) reset the views.
                    // Make sure the back disappears, since if it has buttons these can intercept touches from the front view.
                    mViewPair.mBackView.setVisibility(View.GONE);
                    mViewPair.mFrontView.animate().translationX(0).alpha(1).setDuration(mAnimationTime);
                    // Clear out current variables as they are no longer needed and recycle the velocity tracker.
                    resetState();
                }
            }
        }
        break;
    case MotionEvent.ACTION_MOVE:
        if (mVelocityTracker != null && mState != State.SCROLLING) {
            // If this is an initial movement and we aren't already swiping.
            // Add the movement so we can calculate velocity.
            mVelocityTracker.addMovement(event);
            mVelocityTracker.computeCurrentVelocity(1000);

            float deltaX = event.getRawX() - mDownX;
            float velocityX = Math.abs(mVelocityTracker.getXVelocity());
            float velocityY = Math.abs(mVelocityTracker.getYVelocity());

            // If the movement has been more than what is considered slop, and they are clearing moving horizontal not vertical.
            if (Math.abs(deltaX) > mTouchSlop && velocityX > velocityY) {
                boolean initiateSwiping = false;

                if (mSwipeDirection == SWIPE_DIRECTION_BOTH) {
                    // If the list is setup to swipe in either direction, just let it go.
                    initiateSwiping = true;
                } else if (mSwipeDirection == SWIPE_DIRECTION_LEFT && deltaX < 0) {
                    // If the list is only setup to swipe left, then only allow swiping to the left.
                    initiateSwiping = true;
                } else if (mSwipeDirection == SWIPE_DIRECTION_RIGHT && deltaX > 0) {
                    // If the list is only setup to swipe right, then only allow swiping to the right.
                    initiateSwiping = true;
                }

                if (initiateSwiping) {
                    ViewParent parent = getParent();
                    if (parent != null) {
                        // Don't allow parent to intercept touch (prevents NavigationDrawers from intercepting when near the bezel).
                        parent.requestDisallowInterceptTouchEvent(true);
                    }
                    // Change our state to swiping to start tranforming the item.
                    changeState(State.SWIPING);
                    // Make sure that touches aren't intercepted.
                    requestDisallowInterceptTouchEvent(true);

                    // Cancel ListView's touch to prevent it from being focused.
                    MotionEvent cancelEvent = MotionEvent.obtain(event);
                    cancelEvent.setAction(MotionEvent.ACTION_CANCEL
                            | (event.getActionIndex() << MotionEvent.ACTION_POINTER_INDEX_SHIFT));
                    super.onTouchEvent(cancelEvent);
                } else {
                    // Otherwise we need to cancel the touch event to prevent accidentally selecting the item and also preventing the swipe in the wrong direction or an incomplete touch from moving the view.
                    MotionEvent cancelEvent = MotionEvent.obtain(event);
                    cancelEvent.setAction(MotionEvent.ACTION_CANCEL
                            | (event.getActionIndex() << MotionEvent.ACTION_POINTER_INDEX_SHIFT));
                    super.onTouchEvent(cancelEvent);
                }
            }

            if (mState == State.SWIPING && mViewPair != null) {
                // Make sure the back is visible.
                mViewPair.mBackView.setVisibility(View.VISIBLE);
                //Fade the back in and front out as they move.
                mViewPair.mBackView.setAlpha(Math.min(1f, 2f * Math.abs(deltaX) / mViewWidth));
                mViewPair.mFrontView.setTranslationX(deltaX);
                mViewPair.mFrontView
                        .setAlpha(Math.max(0f, Math.min(1f, 1f - 2f * Math.abs(deltaX) / mViewWidth)));
                return true;
            }
        }
        break;
    }
    return super.onTouchEvent(event);
}

---

From source file:com.along.altmcssd.pda.widget.viewpagerindicator.TitlePageIndicator.java

public boolean onTouchEvent(android.view.MotionEvent ev) {
    if (super.onTouchEvent(ev)) {
        return true;
    }/*from   w  ww  .  j  a  va2  s  .  co m*/
    if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
        return false;
    }

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mLastMotionX = ev.getX();
        break;

    case MotionEvent.ACTION_MOVE: {
        final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, activePointerIndex);
        final float deltaX = x - mLastMotionX;

        if (!mIsDragging) {
            if (Math.abs(deltaX) > mTouchSlop) {
                mIsDragging = true;
            }
        }

        if (mIsDragging) {
            mLastMotionX = x;
            if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) {
                mViewPager.fakeDragBy(deltaX);
            }
        }

        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        if (!mIsDragging) {
            final int count = mViewPager.getAdapter().getCount();
            final int width = getWidth();
            final float halfWidth = width / 2f;
            final float sixthWidth = width / 6f;
            final float leftThird = halfWidth - sixthWidth;
            final float rightThird = halfWidth + sixthWidth;
            final float eventX = ev.getX();

            if (eventX < leftThird) {
                if (mCurrentPage > 0) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage - 1);
                    }
                    return true;
                }
            } else if (eventX > rightThird) {
                if (mCurrentPage < count - 1) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage + 1);
                    }
                    return true;
                }
            } else {
                // Middle third
                if (mCenterItemClickListener != null && action != MotionEvent.ACTION_CANCEL) {
                    mCenterItemClickListener.onCenterItemClick(mCurrentPage);
                }
            }
        }

        mIsDragging = false;
        mActivePointerId = INVALID_POINTER;
        if (mViewPager.isFakeDragging())
            mViewPager.endFakeDrag();
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastMotionX = MotionEventCompat.getX(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        final int pointerIndex = MotionEventCompat.getActionIndex(ev);
        final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
        if (pointerId == mActivePointerId) {
            final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
            mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        }
        mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }

    return true;
}

---

From source file:com.android.core.view.indicator.TitlePageIndicator.java

@SuppressLint("ClickableViewAccessibility")
public boolean onTouchEvent(MotionEvent ev) {
    if (super.onTouchEvent(ev)) {
        return true;
    }/*w  w  w. ja v a2 s  .c  o m*/
    if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
        return false;
    }

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mLastMotionX = ev.getX();
        break;

    case MotionEvent.ACTION_MOVE: {
        final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, activePointerIndex);
        final float deltaX = x - mLastMotionX;

        if (!mIsDragging) {
            if (Math.abs(deltaX) > mTouchSlop) {
                mIsDragging = true;
            }
        }

        if (mIsDragging) {
            mLastMotionX = x;
            if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) {
                mViewPager.fakeDragBy(deltaX);
            }
        }

        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        if (!mIsDragging) {
            final int count = mViewPager.getAdapter().getCount();
            final int width = getWidth();
            final float halfWidth = width / 2f;
            final float sixthWidth = width / 6f;
            final float leftThird = halfWidth - sixthWidth;
            final float rightThird = halfWidth + sixthWidth;
            final float eventX = ev.getX();

            if (eventX < leftThird) {
                if (mCurrentPage > 0) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage - 1);
                    }
                    return true;
                }
            } else if (eventX > rightThird) {
                if (mCurrentPage < count - 1) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage + 1);
                    }
                    return true;
                }
            } else {
                //Middle third
                if (mCenterItemClickListener != null && action != MotionEvent.ACTION_CANCEL) {
                    mCenterItemClickListener.onCenterItemClick(mCurrentPage);
                }
            }
        }

        mIsDragging = false;
        mActivePointerId = INVALID_POINTER;
        if (mViewPager.isFakeDragging())
            mViewPager.endFakeDrag();
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastMotionX = MotionEventCompat.getX(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        final int pointerIndex = MotionEventCompat.getActionIndex(ev);
        final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
        if (pointerId == mActivePointerId) {
            final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
            mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        }
        mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }

    return true;
}

---

From source file:com.ahutjw.indicator.TitlePageIndicator.java

@Override
public boolean onTouchEvent(android.view.MotionEvent ev) {
    if (super.onTouchEvent(ev)) {
        return true;
    }//  ww w  . j  ava 2 s .c o  m
    if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
        return false;
    }

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mLastMotionX = ev.getX();
        break;

    case MotionEvent.ACTION_MOVE: {
        final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, activePointerIndex);
        final float deltaX = x - mLastMotionX;

        if (!mIsDragging) {
            if (Math.abs(deltaX) > mTouchSlop) {
                mIsDragging = true;
            }
        }

        if (mIsDragging) {
            mLastMotionX = x;
            if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) {
                mViewPager.fakeDragBy(deltaX);
            }
        }

        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        if (!mIsDragging) {
            final int count = mViewPager.getAdapter().getCount();
            final int width = getWidth();
            final float halfWidth = width / 2f;
            final float sixthWidth = width / 6f;
            final float leftThird = halfWidth - sixthWidth;
            final float rightThird = halfWidth + sixthWidth;
            final float eventX = ev.getX();

            if (eventX < leftThird) {
                if (mCurrentPage > 0) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage - 1);
                    }
                    return true;
                }
            } else if (eventX > rightThird) {
                if (mCurrentPage < count - 1) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage + 1);
                    }
                    return true;
                }
            } else {
                //Middle third
                if (mCenterItemClickListener != null && action != MotionEvent.ACTION_CANCEL) {
                    mCenterItemClickListener.onCenterItemClick(mCurrentPage);
                }
            }
        }

        mIsDragging = false;
        mActivePointerId = INVALID_POINTER;
        if (mViewPager.isFakeDragging())
            mViewPager.endFakeDrag();
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastMotionX = MotionEventCompat.getX(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        final int pointerIndex = MotionEventCompat.getActionIndex(ev);
        final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
        if (pointerId == mActivePointerId) {
            final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
            mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        }
        mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }

    return true;
}

---

From source file:android.hqs.view.pager.indicator.TitlePageIndicator.java

public boolean onTouchEvent(android.view.MotionEvent ev) {
    if (super.onTouchEvent(ev)) {
        return true;
    }/*from w ww.j  a va2 s.  co m*/
    if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
        return false;
    }

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mLastMotionX = ev.getX();
        break;

    case MotionEvent.ACTION_MOVE: {
        final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        final float x = MotionEventCompat.getX(ev, activePointerIndex);
        final float deltaX = x - mLastMotionX;

        if (!mIsDragging) {
            if (Math.abs(deltaX) > mTouchSlop) {
                mIsDragging = true;
            }
        }

        if (mIsDragging) {
            mLastMotionX = x;
            if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) {
                mViewPager.fakeDragBy(deltaX);
            }
        }

        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        if (!mIsDragging) {
            final int count = mViewPager.getAdapter().getCount();
            final int width = getWidth();
            final float halfWidth = width / 2f;
            final float sixthWidth = width / 6f;
            final float leftThird = halfWidth - sixthWidth;
            final float rightThird = halfWidth + sixthWidth;
            final float eventX = ev.getX();

            if (eventX < leftThird) {
                if (mCurrentPage > 0) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage - 1);
                    }
                    return true;
                }
            } else if (eventX > rightThird) {
                if (mCurrentPage < count - 1) {
                    if (action != MotionEvent.ACTION_CANCEL) {
                        mViewPager.setCurrentItem(mCurrentPage + 1);
                    }
                    return true;
                }
            } else {
                //Middle third
                if (mCenterItemClickListener != null && action != MotionEvent.ACTION_CANCEL) {
                    mCenterItemClickListener.onCenterItemClick(mCurrentPage);
                }
            }
        }

        mIsDragging = false;
        mActivePointerId = INVALID_POINTER;
        if (mViewPager.isFakeDragging())
            mViewPager.endFakeDrag();
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastMotionX = MotionEventCompat.getX(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        final int pointerIndex = MotionEventCompat.getActionIndex(ev);
        final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
        if (pointerId == mActivePointerId) {
            final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
            mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
        }
        mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
        break;
    }

    return true;
}

---

From source file:com.cmad.swipe.SwipeRefreshLayout.java

@Override
public boolean onTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);

    if (mReturningToStart && action == MotionEvent.ACTION_DOWN) {
        mReturningToStart = false;//  www.  ja v a2  s . co  m
    }

    if (!isEnabled() || mReturningToStart || canChildScrollUp()) {
        // Fail fast if we're not in a state where a swipe is possible
        return false;
    }

    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mLastMotionY = mInitialMotionY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mIsBeingDragged = false;
        mCurrPercentage = 0;
        mIsPulling = false;
        mCanRefreshing = false;

        break;

    case MotionEvent.ACTION_MOVE:
        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        if (pointerIndex < 0) {
            Log.e(LOG_TAG, "Got ACTION_MOVE event but have an invalid active pointer id.");
            return false;
        }

        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float yDiff = y - mInitialMotionY;

        if (!mIsBeingDragged) {
            mIsBeingDragged = true;
        }
        /*
        if (yDiff> maxSlopDistance){
            mIsBeingDragged=false;
        }  */

        Log.d(LOG_TAG, "maxSlopDistance:" + maxSlopDistance + "  yDiff:" + yDiff);

        if (mIsBeingDragged && yDiff < maxSlopDistance) {
            // User velocity passed min velocity; trigger a refresh
            if (yDiff / 2 > mDistanceToTriggerSync) {
                // User movement passed distance; trigger a refresh
                //                        startRefresh();
                mCanStartRefresh = true;
            } else {
                mCanStartRefresh = false;
            }
            //                    else {
            // Just track the user's movement
            setTriggerPercentage(mAccelerateInterpolator
                    .getInterpolation(yDiff / mDistanceToTriggerSync > 1 ? 1 : yDiff / mDistanceToTriggerSync));
            updateContentOffsetTop((int) (yDiff / 2));
            if (mLastMotionY > y && mTarget.getTop() == getPaddingTop()) {
                // If the user puts the view back at the top, we
                // don't need to. This shouldn't be considered
                // cancelling the gesture as the user can restart from the top.
                removeCallbacks(mCancel);
            }
            //                        else {
            //                            updatePositionTimeout();
            //                        }
            //                    }
            mLastMotionY = y;
        }
        break;

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int index = MotionEventCompat.getActionIndex(ev);
        mLastMotionY = MotionEventCompat.getY(ev, index);
        mActivePointerId = MotionEventCompat.getPointerId(ev, index);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;

    case MotionEvent.ACTION_UP:
    case MotionEvent.ACTION_CANCEL:
        if (mCanStartRefresh) {
            startRefresh();
        } else {
            removeCallbacks(mCancel);
            post(mCancel);
        }

        mIsBeingDragged = false;
        mCurrPercentage = 0;
        mActivePointerId = INVALID_POINTER;
        return false;
    }

    return true;
}

---

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